Nothing wrong with your earning.
Earned keep increasing as coin are traded to btc
Unconverted: It's just an estimate of your earning if coin are traded at this time.
Price can go up or down as time pass until they're sold for btc.
Thanks Zels for your reply, i do understand that Earned and Unconverted amount keeps changing.
However the total amount shouldn't right, Look at my total balance at 4:08 PM and 12:31 AM, the amount has reduced.
Thanks again for your reply Zels.